1 files changed, 34 insertions, 5 deletions

diff --git a/lib/fuse_session.c b/lib/fuse_session.c
index 040645b..6cfd462 100644
--- a/lib/fuse_session.c
+++ b/lib/fuse_session.c
@@ -7,6 +7,7 @@
 */
 
 #include "fuse_lowlevel.h"
+#include "fuse_lowlevel_compat.h"
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -34,6 +35,8 @@ struct fuse_chan {
     size_t bufsize;
 
     void *data;
+
+    int compat;
 };
 
 struct fuse_session *fuse_session_new(struct fuse_session_ops *op, void *data)
@@ -116,8 +119,8 @@ int fuse_session_exited(struct fuse_session *se)
         return se->exited;
 }
 
-struct fuse_chan *fuse_chan_new(struct fuse_chan_ops *op, int fd,
-                                size_t bufsize, void *data)
+struct fuse_chan *fuse_chan_new_common(struct fuse_chan_ops *op, int fd,
+                                       size_t bufsize, void *data, int compat)
 {
     struct fuse_chan *ch = (struct fuse_chan *) malloc(sizeof(*ch));
     if (ch == NULL) {
@@ -130,10 +133,24 @@ struct fuse_chan *fuse_chan_new(struct fuse_chan_ops *op, int fd,
     ch->fd = fd;
     ch->bufsize = bufsize;
     ch->data = data;
+    ch->compat = compat;
 
     return ch;
 }
 
+struct fuse_chan *fuse_chan_new(struct fuse_chan_ops *op, int fd,
+                                size_t bufsize, void *data)
+{
+    return fuse_chan_new_common(op, fd, bufsize, data, 0);
+}
+
+struct fuse_chan *fuse_chan_new_compat24(struct fuse_chan_ops_compat24 *op,
+                                         int fd, size_t bufsize, void *data)
+{
+    return fuse_chan_new_common((struct fuse_chan_ops *) op, fd, bufsize,
+                                data, 24);
+}
+
 int fuse_chan_fd(struct fuse_chan *ch)
 {
     return ch->fd;
@@ -154,14 +171,22 @@ struct fuse_session *fuse_chan_session(struct fuse_chan *ch)
     return ch->se;
 }
 
-int fuse_chan_recv(struct fuse_chan *ch, char *buf, size_t size)
+int fuse_chan_recv(struct fuse_chan **chp, char *buf, size_t size)
 {
-    return ch->op.receive(ch, buf, size);
+    struct fuse_chan *ch = *chp;
+    if (ch->compat)
+        return ((struct fuse_chan_ops_compat24 *) &ch->op)
+            ->receive(ch, buf, size);
+    else
+        return ch->op.receive(chp, buf, size);
 }
 
 int fuse_chan_receive(struct fuse_chan *ch, char *buf, size_t size)
 {
-    int res = fuse_chan_recv(ch, buf, size);
+    int res;
+
+    assert(ch->compat);
+    res = fuse_chan_recv(&ch, buf, size);
     return res >= 0 ? res : (res != -EINTR && res != -EAGAIN) ? -1 : 0;
 }
 
@@ -177,3 +202,7 @@ void fuse_chan_destroy(struct fuse_chan *ch)
         ch->op.destroy(ch);
     free(ch);
 }
+
+#ifndef __FreeBSD__
+__asm__(".symver fuse_chan_new_compat24,fuse_chan_new@FUSE_2.4");
+#endif